Ex Parte Austin , 1988 Tex. Crim. App. LEXIS 41 ( 1988 )
Shannon v. State , 1986 Tex. Crim. App. LEXIS 1263 ( 1986 )
Ex Parte Adkins , 1989 Tex. Crim. App. LEXIS 62 ( 1989 )
Santobello v. New York , 92 S. Ct. 495 ( 1971 )
Mabry v. Johnson , 104 S. Ct. 2543 ( 1984 )